This is a list of military installations owned or used by the United States Armed Forces both in the United States and around the world. This list details only current or recently closed facilities; some defunct facilities are found at Category:Former military installations of the United States. A military installation is the basic administrative unit into which the U.S. Department of Defense groups its infrastructure, and is statutorily defined as any “base, camp, post, station, yard, center, or other activity under the jurisdiction … [or] operational control of the Secretary of a military department or the Secretary of Defense.” An installation or group of installations may, in turn, serve as a base, which DOD defines as “a locality from which operations are projected or supported.” The U.S. military maintains hundreds of installations, both inside the United States and overseas (with at least 128 military bases located outside of its national territory as of July 2024). According to the U.S. Army, Camp Humphreys in South Korea is the largest overseas base in terms of area. Most of foreign military installations are located in NATO countries, Middle East countries, South Korea, Australia, Japan. U.S. officials have been accused of collaborating with oppressive regimes and anti-democratic governments to secure their military bases, from Central America to the Middle East, Africa, and Asia. The Democracy Index classifies many of the forty-five current non-democratic U.S. base hosts as fully "authoritarian governments". Military bases in non-democratic states were often rationalized during the Cold War by the U.S. as a necessary if undesirable condition in defending against the communist threat posed by the Soviet Union. Few of these bases have been abandoned since the end of the Cold War. Several rounds of closures and mergers have occurred since the end of World War II, a procedure most recently known as Base Realignment and Closure. Anti-racist agitation in the early 2020s led to calls for changing bases to remove the names of Confederate figures who fought against the Union during the American Civil War. The Naming Commission was created by the National Defense Authorization Act for Fiscal Year 2021, and renaming began in December 2022.

Joint bases

Domestic joint bases

Foreign joint bases

Australia joint bases

Iraq joint bases

Syria joint bases

There were approximately 1,500–2,000 U.S. forces in Syria, spread across 12 different facilities, being used as training bases for Kurdish rebels. These soldiers withdrew from Syria to western Iraq in October 2019. Meanwhile, the New York Times reported that the Pentagon was planning to "leave 150 Special Operations forces at a base called al-Tanf", where the United States is training Free Syrian Army rebels. In addition, 200 U.S. soldiers would remain in eastern Syria near the oil fields, to prevent the Islamic State, Syrian government and Russian forces from advancing in the region. According to the Head of the Syrian Arab Republic delegation to Astana talks the U.S. presence in Syria is "illegal" and "without the consent of (the) government".

United States Army

This is a list of links for U.S. Army forts and installations, organized by U.S. state or territory within the U.S. and by country if overseas. For consistency, major Army National Guard (ARNG) training facilities are included but armory locations are not.

Domestic army bases

Alabama army bases

American Samoa army bases

Alaska army bases

Arizona army bases

Arkansas army bases

California army bases

Colorado army bases

Connecticut army bases

Delaware army bases

District of Columbia army bases

Florida army bases

Georgia army bases

Hawaii army bases

Idaho army bases

Illinois army bases

Indiana army bases

Iowa army bases

Kansas army bases

Kentucky army bases

Louisiana army bases

Maine army bases

Maryland army bases

Massachusetts army bases

Michigan army bases

Minnesota army bases

Mississippi army bases

Missouri army bases

Montana army bases

Nebraska army bases

Nevada army bases

New Hampshire army bases

New Jersey army bases

New Mexico army bases

New York army bases

North Carolina army bases

North Dakota army bases

Ohio army bases

Oklahoma army bases

Oregon army bases

Pennsylvania army bases

Puerto Rico army bases

Rhode Island army bases

South Carolina army bases

South Dakota army bases

Tennessee army bases

Texas army bases

Utah army bases

Vermont army bases

Virginia army bases

Washington army bases

West Virginia army bases

Wisconsin army bases

Wyoming army bases

Foreign army bases

Belgium army bases

Bosnia and Herzegovina army bases

Bulgaria army bases

Cameroon army bases

Egypt army bases

Germany army bases

Israel army bases

Italy army bases

Iraq army bases

Japan army bases

List of United States Army installations in Japan

Jordan army bases

Kosovo army bases

Kuwait army bases

Lithuania army bases

Poland army bases

Romania army bases

South Korea army bases

Syria army bases

Turkey army bases

United States Marine Corps

Domestic marine bases

Arizona marine bases

California marine bases

Florida marine bases

Georgia marine bases

Guam and the Northern Mariana Islands marine bases

Hawaii marine bases

North Carolina marine bases

South Carolina marine bases

Virginia marine bases

Washington, D.C.

Foreign marine bases

Germany marine bases

Japan marine bases

South Korea marine bases

United States Navy

Domestic naval bases

California naval bases

Connecticut naval bases

Florida naval bases

Georgia naval bases

Guam naval bases

Hawaii naval bases

Illinois naval bases

Indiana naval bases

Louisiana naval bases

Maine naval bases

Maryland naval bases

Mississippi naval bases

Nevada naval bases

New Jersey naval bases

New York naval bases

Rhode Island naval bases

South Carolina naval bases

Tennessee naval bases

Texas naval bases

Virginia naval bases

Washington naval bases

Washington, D.C. naval bases

Foreign naval bases

Bahamas naval bases

Bahrain naval bases

British Indian Ocean Territory naval bases

Cuba naval bases

Djibouti naval bases

Greece naval bases

Iceland naval bases

Italy naval bases

Japan naval bases

Poland naval bases

Romania naval bases

Singapore naval bases

South Korea naval bases

Spain naval bases

United States Air Force

Domestic air force bases

Alabama air force bases

Alaska air force bases

Arizona air force bases

Arkansas air force bases

California air force bases

Colorado air force bases

Delaware air force bases

Florida air force bases

Georgia air force bases

Guam air force bases

Hawaii air force bases

Idaho air force bases

Illinois air force bases

Indiana air force bases

Kansas air force bases

Louisiana air force bases

Maryland air force bases

Massachusetts air force bases

Michigan air force bases

Mississippi air force bases

Missouri air force bases

Montana air force bases

Nebraska air force bases

Nevada air force bases

New Jersey air force bases

New Mexico air force bases

North Carolina air force bases

North Dakota air force bases

Ohio air force bases

Oklahoma air force bases

South Carolina air force bases

South Dakota air force bases

Tennessee air force bases

Texas air force bases

Utah air force bases

Virginia air force bases

Washington air force bases

Washington, D.C., air force bases.

Wyoming air force bases

Foreign air force bases

Aruba air force bases

British Indian Ocean Territory (United Kingdom) air force bases

Canadian air force bases

Curaçao air force bases

Estonia air force bases

Germany air force bases

Honduras air force bases

Italy air force bases

Japan air force bases

Kenya air force bases

Kuwait air force bases

Lithuania air force bases

Marshall Islands air force bases

Netherlands air force bases

Poland air force bases

Portugal air force bases

Qatar air force bases

Romania air force bases

Saudi Arabia air force bases

Somalia air force bases

South Korea air force bases

Sovereign Base Areas of Akrotiri and Dhekelia (United Kingdom) air force bases

Spain air force bases

Turkey air force bases

United Arab Emirates air force bases

United Kingdom air force bases

United States Space Force

Domestic space force bases

Alaska space force bases

California space force bases

Colorado space force bases

Florida space force bases

Hawaii space force bases

Massachusetts space force bases

New Hampshire space force bases

North Dakota space force bases

Foreign space force bases

Ascension Island (United Kingdom) space force bases

Greenland (Denmark) space force bases

United States Coast Guard

Domestic coast guard bases

Foreign coast guard bases

Bahrain coast guard bases

Cuba coast guard bases

Germany coast guard bases

Japan coast guard bases

Netherlands coast guard bases

Saudi Arabia coast guard bases

Singapore coast guard bases

Explanatory notes

Sources